Impact of Island-Induced Clouds on Surface Measurements: Analysis of the ARM Nauru Island Effect Study Data
Impact of Island-Induced Clouds on Surface Measurements: Analysis of the ARM Nauru Island Effect Study Data
复制标题
岛屿引起的云对地表测量的影响：ARM 瑙鲁岛效应研究数据分析
DOI：
10.1175/jam2241.1
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Donna Flynn
中科院分区：
文献类型：
--
作者：
S. McFarlane;C. Long;Donna Flynn
摘要 大气辐射测量（ARM）计划在瑙鲁岛上建立了大气辐射和云站（ARCS）。对瑙鲁 99 现场实验数据的分析表明，ARCS 的测量受到岛上昼夜加热引起的云羽的影响。在瑙鲁岛影响研究期间，在第二个地点安装了仪器，以制定识别云羽发生时间的标准，并量化其对 ARCS 测量的影响。羽流的方向和发生频率受到大范围热带环流的影响。在本研究期间，厄尔尼诺现象正在发展，瑙鲁处于对流活跃区域，东信风并不占主导地位； 25% 的卫星图像中观察到羽流，并且只有一半观察到的羽流位于 ARCS 站点的下风处。两个地点的地面风向、地面气温和下降太阳辐射被用来识别...
Abstract An Atmospheric Radiation and Cloud Station (ARCS) was established on the island of Nauru by the Atmospheric Radiation Measurement (ARM) Program. Analysis of the Nauru99 field experiment data indicated that measurements at the ARCS were affected by a cloud plume that was induced by diurnal heating of the island. During the Nauru Island Effects Study, instrumentation was installed at a second site to develop criteria for identifying when the cloud plume occurs and to quantify its effect on ARCS measurements. The plume directional heading and frequency of occurrence are affected by the large-scale tropical circulation. During the present study, in which an El Nino was developing, Nauru was in a region of active convection, and easterly trade winds were not dominant; plumes were observed in 25% of satellite images, and only one-half of the observed plumes were downwind of the ARCS site. Surface wind direction, surface air temperature, and downwelling solar radiation at the two sites were used to iden...